Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kristin S. Simac"'
Publikováno v:
Ecology and Evolution, Vol 11, Iss 20, Pp 14250-14267 (2021)
Abstract The Arctic Ocean is undergoing rapid transformation toward a seasonally ice‐free ecosystem. As ice‐adapted apex predators, polar bears (Ursus maritimus) are challenged to cope with ongoing habitat degradation and changes in their prey ba
Externí odkaz:
https://doaj.org/article/6219cacedb1a4f078da5b1c357953ec0
Publikováno v:
Ecology and Evolution, Vol 11, Iss 20, Pp 14250-14267 (2021)
Ecology and Evolution
Ecology and Evolution
The Arctic Ocean is undergoing rapid transformation toward a seasonally ice‐free ecosystem. As ice‐adapted apex predators, polar bears (Ursus maritimus) are challenged to cope with ongoing habitat degradation and changes in their prey base driven
Autor:
George K. Sage, Ryan R. Wilson, Sandra L. Talbot, Karyn D. Rode, Eric V. Regehr, Anthony M. Pagano, Michelle St. Martin, Gregory W. Thiemann, George M. Durner, Kristin S. Simac, Todd C. Atwood
Publikováno v:
PLoS ONE
PLoS ONE, Vol 15, Iss 8, p e0237444 (2020)
PLoS ONE, Vol 15, Iss 8, p e0237444 (2020)
Animal structural body size and condition are often measured to evaluate individual health, identify responses to environmental change and food availability, and relate food availability to effects on reproduction and survival. A variety of condition
Autor:
Kristin S. Simac, David C. Douglas, Todd C. Atwood, George M. Durner, Jeffrey F. Bromaghin, Vijay P. Patil
Publikováno v:
Open-File Report.
Autor:
Jeffrey F. Bromaghin, Todd C. Atwood, David C. Douglas, Karyn D. Rode, Anthony M. Pagano, Kristin S. Simac
Publikováno v:
Global Ecology and Conservation, Vol 32, Iss, Pp e01925-(2021)
In the Arctic, warming air and ocean temperatures have resulted in substantial changes to sea ice, which is primary habitat for polar bears (Ursus maritimus). Reductions in extent, duration, and thickness have altered sea ice dynamics, which influenc
Autor:
Andrew E. Derocher, Ian Stirling, Kristin S. Simac, Nicholas W. Pilfold, Vanessa Muhlenbruch, Karyn D. Rode, Todd C. Atwood, Steven C. Amstrup, George M. Durner, Ryan R. Wilson, Eric V. Regehr, Evan S. Richardson, Anthony M. Pagano, Michelle St. Martin, David C. Douglas
Publikováno v:
Global Change Biology. 24:410-423
The effects of declining Arctic sea ice on local ecosystem productivity are not well understood but have been shown to vary inter-specifically, spatially, and temporally. Because marine mammals occupy upper trophic levels in Arctic food webs, they ma
Autor:
Kristin S. Simac, Tony L. Goldberg, Kristen R. Friedrichs, Todd C. Atwood, Tricia L. Fry, Colleen Duncan
Publikováno v:
Conservation Physiology
Reference intervals (RIs) for biochemical analytes provide baseline values for assessing physiologic status and health. We established RIs for commonly assessed blood-based analytes for polar bears from the southern Beaufort Sea. These RIs fill a kno
Publikováno v:
Marine Mammal Welfare ISBN: 9783319469935
The behavior and sociality of polar bears (Ursus maritimus) have been shaped by evolved preferences for sea ice habitat and preying on marine mammals. However, human behavior is causing changes to the Arctic marine ecosystem through the influence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71dec3134f8fb62abe1203c7c62259d2
https://doi.org/10.1007/978-3-319-46994-2_22
https://doi.org/10.1007/978-3-319-46994-2_22
Publikováno v:
Canadian Journal of Zoology. 90:663-676
Polar bears ( Ursus maritimus Phipps, 1774) depend on sea ice for catching marine mammal prey. Recent sea-ice declines have been linked to reductions in body condition, survival, and population size. Reduced foraging opportunity is hypothesized to be
Autor:
Stacy S. Vander Pol, Rebecca S. Pugh, Michael B. Ellisor, Kristin S. Simac, Michele M. Schantz, Paul R. Becker, David G. Roseneau, Dianne L. Poster, Stefan D. Leigh, Bryan J. Wakeford
Publikováno v:
Analytical and Bioanalytical Chemistry. 387:2357-2363
The Seabird Tissue Archival and Monitoring Project (STAMP) is a collaborative Alaska-wide effort by the US Fish and Wildlife Service's Alaska Maritime National Wildlife Refuge (USFWS/AMNWR), the US Geological Survey's Biological Resources Division (U